Elastic ring-shaped holder for small lamps



Apr. 3, 1923.

F. F. HEINE ELASTIC RING SHAPED HOLDER FOR SMALL LAMPS Filed Feb. 15, 1922 Patented Apr. 3, 1923.

are are.

FRITZ FERDINAND I-IEINE, OF LEIPZIG, GERMANY.

ELASTIC RING-SHAPED HOLDER FOR SMALL LAMPS.

Application filed February 13, 1922.

T 0 all whom it may concern:

Be it known that I, FRITZ FERDINAND HEINE, a citizen of the German Republic, residing at Leipzig, Germany, have invented certain new and useful Improvements in Elastic Ring-Shaped Holders for Small Lamps, of which the following is a specification.

It has already become known to arrange small incandescent lamps in suitable reflee-tors which can be mounted upon pencils, penholders or a finger in order to light up objects in proximity of the hands. As means for fixing such reflectors to the fingers, sleeves, clamps and rings have already been used. These known means for attachment present however the inconvenience that they possess only little capability of adaptation and adjustability, so that, if such a device is for instance destined to be fixed upon a finger, it cannot be placed upon a thicker screw driver, a chasing tool or any other tool which is still thicker. The holders for lamps of this type, consisting of an elastic ring, permit further a rotation in one direction only.

This invention has for its object to improve the holding device for small lamps in such a manner that it can be mounted upon objects of various thickness. In order that the invention may be clearly understood, I shall proceed to describe the same with reference to the form of construction shown by way of example on the accompanying drawing, wherein:

Fig. 1 is a side elevation, and

Fig. 2 a plan view of the holder with refiector and small lamp.

The small incandescent lamp is mounted in the reflector R. An elastic ring A, consisting of an elastic wire spiral, is used as holder. The wire spiral is known per se but this material has not yet been used for holders for small lamps. If'used for this pur- Serial No. 536,322.

pose the special advantage is obtained that the ring cannot only be extended to approximately thrice its normal diameter, owing to its elasticity, in yielding directly and automatically in any variation of diameter, but that it can be extended in different planes. The ring can therefor be placed upon fingers of various thickness and also upon tools which have a handle much thicker than a finger or of p-risn'iatic or cornered shape. mounted by means of this elastic ring upon the most various objects or tools to be held in the hand. The use of a wire spiral as material for the ring-shaped. holder presents the further advantage that the ring exerts only a soft pressure upon the finger, which is not the case with metal rings of solid cross section. Owing to the extensibility of the ring-shaped holder, it cannot only be mounted upon curved profiles but also upon angular profiles and upon tools the arms of which are spread asunder, as for instance scissors and pincers. v

The applicability of the small lamps has been considerably multiplied by the improved elastic holder, as one and the same small lamp can be mounted upon the most various utensils, removed from the same and used upon other objects.

I claim A reflector having a top, a supporting ring attached thereto, said supporting ring being extensible in the plane of its circle and a narrowly wound wire spiral. the wind ings of which are arranged as tangents to the ring circle.

' In testimony whereof I al'iix my signa ture in presence of two witnesses.

FRITZ FERDINAND HEINE.

Witnesses MARGARET L. MEUZEL, RUDOLPH FRIoKE.

The lamp can therefore be 

